Home / 39,328.91-54,274.53-21,423.93

Finding the Fourth Proportional to 39,328.91, 54,274.53 and 21,423.93

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Solution

The fourth proportional to 39,328.91, 54,274.53 and 21,423.93 is: 29,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,328.91 : 54,274.53 = 21,423.93 : x
  2. Step 2: Convert to fraction form
    39,328.91/54,274.53 = 21,423.93/x
  3. Step 3: Cross multiply
    39,328.91x = 54,274.53 × 21,423.93
  4. Step 4: Simplify right side
    39,328.91x = 1,162,773,731.50
  5. Step 5: Solve for x
    x = 1,162,773,731.50/39,328.91
  6. Step 6: Final answer
    x = 29,565.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.